What machinery companies are there in Luzhou?

The most famous ones are "Three Longs": Changjiang Crane Factory (now cooperating with Terex of America), Changjiang Excavator Factory (now being restructured into Bangli Heavy Machinery, cooperating with Yuchai Heavy Industry) and Changjiang Hydraulic Parts Factory (all hydraulic devices for the 2008 Olympic Torch were provided by Changyou Factory). Personally, I feel that Changjiang Hydraulic Parts Factory is the best in Luzhou machinery. Enterprises have independent intellectual property rights, and Luzhou Hydraulic Parts is a national industrial park. There is also a South Sichuan Machinery Factory (692 Factory), which is of a military nature. There are also a large number of small machinery factories, mainly distributed in Tai 'an, Lu Biya. There are some in Lu Xian County, such as Hengwei Piston Ring Company.